58Predefined user rolesnetwork-adminParametersip-address: IP address of the local clock, which is 127.127.1.u, where u is the NTP process ID in the rangeof 0 to 3. If you do not specify ip-address, it defaults to 127.127.1.0.stratum: Stratum level of the local clock, in the range of 1 to 15 and defaults to 8. A lower stratum levelrepresents higher clock accuracy.Usage guidelinesUsually an NTP server that gets its time from an authoritative time source, such as an atomic clock hasstratum 1 and operates as the primary time server to provide time synchronization for other devices in thenetwork. The accuracy of each server is the stratum, with the topmost level (primary servers) assigned asone and each level downwards (secondary servers) in the hierarchy assigned as one greater than thepreceding level.If the devices in a network cannot synchronize to an authoritative time source, you can select a device thathas a relatively accurate clock from the network, and use the local clock of the device as the referenceclock to synchronize other devices in the network.Use this command with caution to avoid time errors. Before you execute the command, H3Crecommends that you adjust the local system time.Examples# Specify the local clock as the reference source, with the stratum level of 2. system-view[Sysname] ntp-service refclock-master 2ntp-service reliable authentication-keyidUse the ntp-service reliable authentication-keyid command to specify the created authentication key asa trusted key.Use the undo ntp-service reliable authentication-keyid command to remove the configuration.Syntaxntp-service reliable authentication-keyid keyidundo ntp-service reliable authentication-keyid keyidDefaultNo trust key is specified.ViewsSystem viewPredefined user rolesnetwork-adminParameterskeyid: Authentication key number, in the range of 1 to 4294967295.
